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7542597 |
Method for correction of relative object-detector motion between successive views
An apparatus and method for correction of relative object-detector motion between successive views during optical tomographic imaging in three dimensions. An object of interest is illuminated to...
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7542623 |
Image processing apparatus and method, and computer program and computer-readable storage medium
This invention obtains information required to quantitatively evaluate block distortion of an image on the basis of encoded data that utilizes the compression encoding technique for respective...
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7538907 |
Image reading apparatus capable of self-diagnosis using consecutive number of adjacent abnormal pixels
An apparatus for reading an image on a medium to be read using a light emitting device and a light receiving device is disclosed in which a determination is made that at least one of the light...
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7539352 |
Image filter, image filtering method and computer program
A first pixel group containing a pixel of interest, a second pixel group containing the first pixel group, and a third pixel group containing the second pixel group are defined. A first reference...
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7535501 |
Testing of digital cameras
A method of automatically checking digital camera images for dust on the image sensors of the associated cameras is disclosed that enables operators to check the performance level of digital...
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7536036 |
Method and apparatus for red-eye detection in an acquired digital image
A method for red-eye detection in an acquired digital image comprises acquiring a first image and analyzing the first acquired image to provide characteristics indicative of image quality. The...
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7532767 |
Removing ringing and blocking artifacts from JPEG compressed document images
A method of removing ringing and blocking artifacts from a decompressed digital image. In one method, a background value of the digital image a background region and foreground regions is...
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7532766 |
Method and system for producing formatted data related to geometric distortions
A processing system and method for producing formatted information related to appliances of an appliance chain. This appliance chain includes at least one image-capture appliance and/or at least...
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7529392 |
Image processing system and medical examination apparatus for correlating features in medical images
An image processing system, for correlating shapes in multi-dimensional images including image data processor for estimating a similarity measure including estimating two image signals representing...
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7529425 |
Denoising method, apparatus, and program
A blurred image generating section generates a plurality of blurred images Sm (where m=1 to n and n≧2) different in frequency response characteristic from one another, based on an original image...
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7529424 |
Correction of optical distortion by image processing
An optical system comprising the following. A camera that is capable of reducing distortion from an optical system has an optical system that is configured to capture a wide field of view of a...
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7524069 |
Projector with transmitter information receiver and method of correcting distortion of projected image
A projector has a transmission time information reception unit for calculating the distances between a transmitter and first and second ultrasonic receivers based on reception times of ultrasonic...
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7526142 |
Enhancement of decompressed video
A method and apparatus for enhancing the video quality of compressed video signals adaptively removes distortions and ringing effects embedded in the decompressed images. The apparatus operates in...
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7526130 |
Signal processing in barcode reading with a wavelet transformation
A method for processing a digital signal obtained in a barcode reading operation comprises a step of applying a wavelet transformation to the digital signal. The noise threshold at each level of...
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7525702 |
Methods and systems for correcting color distortions
A color distortion correction is obtained by calculating a color shift of a first color channel with respect to a second color channel along each pixel column of a scanned calibration image. The...
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7522782 |
Digital image denoising
Denoising of a plurality of pixels of a color digital image includes analyzing the plurality of pixels to identify those pixels having a high likelihood of containing significant noise; and forcing...
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7522770 |
Methods and apparatus for automated image correction for digital image acquisition
Methods and apparatus are provided for automatically correcting colors of a digital image. The methods and apparatus create a first digital image of a target test sheet under a predetermined...
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7522761 |
System and method for detecting a streak in a compressed gray scale image
A system and method for detecting a streak in a JPEG image. A system is provided that includes an extraction system for extracting a DC value from each cell block in the compressed image; an...
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7515178 |
Method of correcting distortions in digital images captured by a digital camera system
A method of correcting distortions in digital images captured by a digital camera system includes capturing a visual image with a digital camera having a camera body, converting the visual image to...
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7515768 |
Method, and apparatus for processing image, recording medium and computer program
An image processing apparatus includes a corrector for correcting a pixel value of each of a plurality of pixels forming each access unit to be processed, based on at least one of the parameter...
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7515317 |
Compensating a zipper image by a K-value
A method of compensating a zipper image by a K-value, and a method of calculating the K-value. Whether the nth primitive pixel of the mth line is obtained by primary line scan is determined. If the...
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7511769 |
Interframe noise reduction for video
A system to reduce noise includes a noise measurement device that provides a measure of noise associated with a digital input video signal. A noise reduction filter provides a noise-reduced digital...
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7508982 |
Image processing apparatus, method, and storage medium for removing noise from stereoscopic image pair
Light that is incident through a pair of object lenses of digital binocular glasses is photographed by a pair of image pickup devices to obtain a pair of images (stereoscopic image) generating a...
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7508994 |
Method for detecting streaks in digital images
The present invention uses five regions of interest, 4 corners and 1 center to do Fourier Transform analysis to mark rough location of the streaks, if there is any. It sets the small window around...
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7505632 |
Method, apparatus and storage medium for enhancing document image, method, apparatus and storage medium for character recognition
The present invention relates to method, apparatus and storage medium for enhancing document image, and method, apparatus and storage medium for character recognition. For enhancing the document...
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7502143 |
Signal processing method, signal output apparatus, signal processing apparatus, image processing apparatus, and image forming apparatus
A pseudo-random number generator comprises a controller, a plurality of LFSRs, a FIR filter and a normalizer. The pseudo-random number generator initializes the LFSRs in such a manner that each...
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7499600 |
Method for characterizing a digital imaging system
A method for use in characterizing a digital imaging system ( 53 ) having an array of imaging elements ( 35 ), and in particular for measuring the modulation transfer function (sometimes called the...
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7499599 |
Method of real-time correction of non-functioning pixels in digital radiography
A method and program product for real-time correction of non-functioning pixels in digital radiography, where the method comprises: receiving a list of non-functioning pixels; determining which...
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7496240 |
Image denoising apparatus and method
According to an image de-noising method, an original image is corrected into an intermediate correction image. A differential image is determined between the original image and the intermediate...
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7496241 |
Precision optical systems with performance characterization and uses thereof
An optical system includes a reference projector that projects collimated beams of light into the optical system entrance aperture which are imaged by an image recording device. The beams produce...
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7496223 |
Imaging device including optimized imaging correction
In order to eliminate ghost effects, offset images ( 16, 17 ) are recorded in an imaging device with an x-ray detector immediately before and after the recording of an x-ray image ( 10 ), and, from...
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7492962 |
System or method for enhancing an image
A system and method for enhancing the contrast within an image. An enhanced image can be generated in a real-time or substantially real-time manner from an initial image. A low-contrast image is...
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7492485 |
Image-based compensation and control of photoreceptor ghosting defect
A system and method for correcting a defect in an image, such as a ghost defect or a reload defect, by compensating for the defect. A defect model is created with a source target function that...
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7489831 |
Method and apparatus for darker region details using image global information
A method for processing a digital input image data indexed to represent positions on a display such that the digital data is indicative of an intensity value for each position. The intensity value...
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7489829 |
Adaptive low-light image processing
A method for enhancing imaging in low light conditions, comprising: acquiring image data relating to a plurality of consecutive images; determining a local motion factor relating to the consecutive...
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7486838 |
Noise reduction apparatus
A noise reduction apparatus is disclosed. A noise amount estimating unit estimates a noise amount in a focused pixel. A smoothing unit smoothes the focused pixel. A control unit controls the...
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7479996 |
Noise eliminating device and method therefor
To obtain a noise eliminating device which is capable of efficiently separating a noise component from an image component to attenuate only the noise component. A noise eliminating device includes:...
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7479969 |
Grid detection method
Method of detecting an image of a grid in a digital image by extracting a number of features from the digital image and classifying extracted features in a classification algorithm, preferably...
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7480419 |
Image signal processing
An image signal is processed by deriving measurements representing the luminance of a signal; calculating values relating to the local mean, the local standard deviation, the local maximum and/or...
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7477290 |
Image recording/reproducing apparatus, image pick-up apparatus, and color aberration correcting method
An image recording and reproducing apparatus, an image pickup apparatus, and a chromatic aberration correcting method capable of performing excellent correction processing of an aperture amount of...
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7477773 |
Method for inspecting a pattern and method for manufacturing a semiconductor chip having a circuit pattern
A method for inspecting a pattern includes measuring, in a first direction, a width of a reference pattern at plural positions in the reference patter; measuring, in a second direction, a width of...
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7477802 |
Robust reconstruction of high resolution grayscale images from a sequence of low resolution frames
A computer method of creating a super-resolved grayscale image from lower-resolution images using an L 1 norm data fidelity penalty term to enforce similarities between low and a high-resolution...
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7474788 |
Method and system for enhancing image resolution using a modification vector
An image processing system. An input/output device receives information for pixels in an image corresponding to an object, wherein the information specifies optical properties. A storage device...
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7474800 |
Method and apparatus for removing image compression artifacts
A method and apparatus from removing image compression artifacts includes comparing a center pixel value with a perimeter pixel value to generate a compare pixel value. The compare pixel value is...
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7474799 |
System and method for electronic correction of optical anomalies
An electronic correction system and method for correcting optical anomalies, namely distortions, color non-convergence (excluding axial chromatic aberration) and luminance (or chrominance)...
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7471847 |
Image processing method and apparatus for correcting image brightness distribution
An image processing apparatus comprises a luminance extraction means for extracting a luminance component from image data, a scale conversion means for obtaining a distribution of the luminance...
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7471845 |
De-ringing filter
An image de-ringing filter system and method are provided. The method comprises: accepting image pixels; collecting data from a first group of pixels neighboring a test pixel; in response to the...
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7471848 |
Program for correcting image distortion, apparatus for correcting image distortion, method for correcting image distortion, and recording medium storing program for correcting image distortion
A projection set of geodesic lines which are parallel with each other on a curved surface of a paper face is extracted from an image in which a paper face has been imaged by an image-pickup device,...
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7471849 |
Methods and apparatus for shifting perspective in a composite image
Methods and apparatus for shifting perspective in a composite image derived from a plurality of images including a first image as a center of projection, and a modified version of a second image...
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7469073 |
Image-based method for detection and removal of small fragments in segmented three-dimensional volumes
A method for detecting and removing small isolated fragments in a 3D segmented volume is disclosed. The 3D segmented volume is projected onto several 2D images from different viewing directions....
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